United Nations Educational Scientific and Cultural Organization. (1975). World guide to technical information and documentation services (2nd ed., rev., and enl.). Unesco Press.
Chicago Style aipamenaUnited Nations Educational Scientific and Cultural Organization. World Guide to Technical Information and Documentation Services. 2nd ed., rev., and enl. Paris: Unesco Press, 1975.
MLA aipamenaUnited Nations Educational Scientific and Cultural Organization. World Guide to Technical Information and Documentation Services. 2nd ed., rev., and enl. Unesco Press, 1975.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.